iphone - ios:字符串到日期的转换

Question

我正在尝试使用以下代码将日期从NSString转换为NSDate

NSDateFormatter *dateformatter = [[NSDateFormatter alloc]init];
[dateformatter setDateStyle:NSDateFormatterShortStyle];
[dateformatter setTimeStyle:NSDateFormatterNoStyle];
[dateformatter setDateFormat:@"dd/MM/yyyy"];
NSDate *myDate = [[NSDate alloc] init];

currMonth = 3;
currYear = 2012;
NSString *str = [NSString stringWithFormat:@"01/%2d/%d", currMonth, currYear];
str = [str stringByReplacingOccurrencesOfString:@" " withString:@"0"];
myDate = [dateformatter dateFromString:str];
NSLog(@"myStr: %@",str);
NSLog(@"myMonth: %2d",currMonth);
NSLog(@"myYear: %d",currYear);
NSLog(@"myDate: %@",myDate);

上面的代码给我错误的日期。谁能帮忙吗？

Answer 1

你的输出是什么？请记住，NSDate位于UTC中。
2012-03-01 00:00:00 (GMT+1)是2012-02-39 23:00:00 (UTC)
另一个提示:
%02用前导零格式化您的整数。